Remote node expelled after remote file system successfully mounted

This problem produces 'node expelled from cluster' messages.

One cause of this condition is when the subnets attribute of the mmchconfig command has been used to specify subnets to GPFS, and there is an incorrect netmask specification on one or more nodes of the clusters involved in the remote mount. Check to be sure that all netmasks are correct for the network interfaces used for GPFS communication.